251013985 is an odd 9-digits composite number following 251013984
and preceding 251013986 . In scientific notation, it is written as 2.51013985 × 10^8.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 200811184 positive integers (up to 251013985) that are relatively prime to 251013985.
251013985 has 4 divisors, whose sum is 301216788
The reverse of 251013985 is 589310152
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 34
Digital Root 7
Name
two hundred fifty-one million thirteen thousand nine hundred eighty-five
Scientific notation
2.51013985 × 10^8
Engineering notation
2.51013985 × 10^6
Prime Factorization
5 × 50202797
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
251013985
Product of the distinct prime numbers
The prime factorization of 251013985 is 5 × 50202797.
Since it has a total of 2 prime factors.
6 , 9 , 39 , 92 , 84 , 826 , 1643 , 7996 , 58248 , 77444 , 651218 , 464297 , 474957 , 234900 , 52190869 , 23489827 , 658350133 , 218582637 , 3076886737 , 7697131161
n×2
502027970
n×3
753041955
n×4
1004055940
n×5
1255069925
n÷2
125506992.5
n÷3
83671328.333333
n÷3
62753496.25
n÷5
50202797
n2
63008020665580225
n3
1.581589435423E+25
n4
3.9700106681942E+33
n5
9.9652819831594E+41
2 √n
15843.420874294
3 √n
630.81107009228
4 √n
125.870651362
5 √n
47.856351295315
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-251013984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 251013985 can be divided by 4 positive divisors.
The sum of these divisors (counting 251013985) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111101100010101101100001
3
Ternary
122111022211110021
4
Quaternary
32331202231201
5
Quinary
1003224421420
6
Senary
40524033441
8
Octal
1675425541
10
Decimal
251013985
12
Duodecimal
70092881
16
Hexadecimal
ef62b61
20
Vigesimal
3i8gej5
36
Base36
45g3mp
md5
653819a370979ba5037d982e6b208fac
sha1
074e425012d1610436d8ce52ba904407465f1bf6
sha256
425f0f43d9ace6bae00418fcca40f30d4dc1822df807abb831c4f4994657bba5
sha512
9e458ee094027ef57aebe7e35deaf29ad558316bcf64c55f2c945acfd878d07cf3b83f30ab31e89cb359fb1507898d6abd92430d9dc74f36c9a759b53ddd2eca
ripemd-160
3ec0237e8a67cb408f4cc80bf3c7b8e945fc89d9
Diameter
502027970
Circumference
1577167382.4486
Area
1.9794553484022E+17
Volume
6.6249463350934E+25
Surface area
7.9178213936088E+17
Circumference
1577167382.4486
Perimeter
1004055940
Area
63008020665580225
Diagonal
354987381.93232
Surface area
378048123993481350
Volume
1.581589435423E+25
Space diagonal
434768975.43033
Perimeter
753041955
Area
2.7283273269284E+16
Altitude
217384487.71517
Surface area
2.7283273269284E+16
Volume
1.8639210247343E+24
Height
118329127.31077